From: Max Gurtovoy <maxg@mellanox.com>
Date: Wed, 25 Sep 2019 00:05:48 +0300
Subject: IB/iser: remove redundant macro definitions
Patch-mainline: v5.5-rc1
Git-commit: 6eeff06db999bf9b17aaa52fddda4fd449726a64
References: jsc#SLE-8449
Use the general linux definition for 4K and retrieve the rest from it.
Link: https://lore.kernel.org/r/1569359148-12312-1-git-send-email-maxg@mellanox.com
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +-
drivers/infiniband/ulp/iser/iscsi_iser.h | 8 ++------
drivers/infiniband/ulp/iser/iser_memory.c | 4 ++--
drivers/infiniband/ulp/iser/iser_verbs.c | 4 ++--
4 files changed, 7 insertions(+), 11 deletions(-)
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -653,7 +653,7 @@ iscsi_iser_session_create(struct iscsi_e
}
if (!(ib_dev->attrs.device_cap_flags & IB_DEVICE_SG_GAPS_REG))
- shost->virt_boundary_mask = ~MASK_4K;
+ shost->virt_boundary_mask = SZ_4K - 1;
if (iscsi_host_add(shost, ib_dev->dev.parent)) {
mutex_unlock(&iser_conn->state_mutex);
--- a/drivers/infiniband/ulp/iser/iscsi_iser.h
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.h
@@ -96,16 +96,12 @@
#define iser_err(fmt, arg...) \
pr_err(PFX "%s: " fmt, __func__ , ## arg)
-#define SHIFT_4K 12
-#define SIZE_4K (1ULL << SHIFT_4K)
-#define MASK_4K (~(SIZE_4K-1))
-
/* Default support is 512KB I/O size */
#define ISER_DEF_MAX_SECTORS 1024
#define ISCSI_ISER_DEF_SG_TABLESIZE \
- ((ISER_DEF_MAX_SECTORS * SECTOR_SIZE) >> SHIFT_4K)
+ ((ISER_DEF_MAX_SECTORS * SECTOR_SIZE) >> ilog2(SZ_4K))
/* Maximum support is 16MB I/O size */
-#define ISCSI_ISER_MAX_SG_TABLESIZE ((32768 * SECTOR_SIZE) >> SHIFT_4K)
+#define ISCSI_ISER_MAX_SG_TABLESIZE ((32768 * SECTOR_SIZE) >> ilog2(SZ_4K))
#define ISER_DEF_XMIT_CMDS_DEFAULT 512
#if ISCSI_DEF_XMIT_CMDS_MAX > ISER_DEF_XMIT_CMDS_DEFAULT
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -237,7 +237,7 @@ int iser_fast_reg_fmr(struct iscsi_iser_
int ret, plen;
page_vec->npages = 0;
- page_vec->fake_mr.page_size = SIZE_4K;
+ page_vec->fake_mr.page_size = SZ_4K;
plen = ib_sg_to_pages(&page_vec->fake_mr, mem->sg,
mem->dma_nents, NULL, iser_set_page);
if (unlikely(plen < mem->dma_nents)) {
@@ -451,7 +451,7 @@ static int iser_fast_reg_mr(struct iscsi
ib_update_fast_reg_key(mr, ib_inc_rkey(mr->rkey));
- n = ib_map_mr_sg(mr, mem->sg, mem->dma_nents, NULL, SIZE_4K);
+ n = ib_map_mr_sg(mr, mem->sg, mem->dma_nents, NULL, SZ_4K);
if (unlikely(n != mem->dma_nents)) {
iser_err("failed to map sg (%d/%d)\n",
n, mem->dma_nents);
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -180,7 +180,7 @@ int iser_alloc_fmr_pool(struct ib_conn *
page_vec->pages = (u64 *)(page_vec + 1);
- params.page_shift = SHIFT_4K;
+ params.page_shift = ilog2(SZ_4K);
params.max_pages_per_fmr = size;
/* make the pool size twice the max number of SCSI commands *
* the ML is expected to queue, watermark for unmap at 50% */
@@ -670,7 +670,7 @@ iser_calc_scsi_params(struct iser_conn *
else
max_num_sg = attr->max_fast_reg_page_list_len;
- sg_tablesize = DIV_ROUND_UP(max_sectors * 512, SIZE_4K);
+ sg_tablesize = DIV_ROUND_UP(max_sectors * SECTOR_SIZE, SZ_4K);
if (attr->device_cap_flags & IB_DEVICE_MEM_MGT_EXTENSIONS)
sup_sg_tablesize =
min_t(